Safety device for medium voltage switch gear, has sealing head whose studs are inserted into recesses of arms when handle moves from one position to another position so that studs and head move away from plate and plate springs are relaxed

摘要

The device has plate springs (82, 83) provided between a sealing body and a sealing head. A lever arrangement has two arms with recesses which are fixed in the forked openings. Studs of the head are inserted into the recesses when a handle enclosing bent portions of the lever arrangement moves from one position to another position such that the studs and the head move away from a plate and the springs are relaxed.